diff options
Diffstat (limited to 'git-rebase--interactive.sh')
| -rwxr-xr-x | git-rebase--interactive.sh | 164 |
1 files changed, 126 insertions, 38 deletions
diff --git a/git-rebase--interactive.sh b/git-rebase--interactive.sh index 3e4fd1456f..a27952d9fd 100755 --- a/git-rebase--interactive.sh +++ b/git-rebase--interactive.sh @@ -20,6 +20,7 @@ v,verbose display a diffstat of what changed upstream onto= rebase onto given branch instead of upstream p,preserve-merges try to recreate merges instead of ignoring them s,strategy= use the given merge strategy +no-ff cherry-pick all commits, even if unchanged m,merge always used (no-op) i,interactive always used (no-op) Actions: @@ -96,6 +97,13 @@ AUTHOR_SCRIPT="$DOTEST"/author-script # command is processed, this file is deleted. AMEND="$DOTEST"/amend +# For the post-rewrite hook, we make a list of rewritten commits and +# their new sha1s. The rewritten-pending list keeps the sha1s of +# commits that have been processed, but not committed yet, +# e.g. because they are waiting for a 'squash' command. +REWRITTEN_LIST="$DOTEST"/rewritten-list +REWRITTEN_PENDING="$DOTEST"/rewritten-pending + PRESERVE_MERGES= STRATEGY= ONTO= @@ -103,14 +111,16 @@ VERBOSE= OK_TO_SKIP_PRE_REBASE= REBASE_ROOT= AUTOSQUASH= +test "$(git config --bool rebase.autosquash)" = "true" && AUTOSQUASH=t +NEVER_FF= -GIT_CHERRY_PICK_HELP=" After resolving the conflicts, -mark the corrected paths with 'git add <paths>', and -run 'git rebase --continue'" +GIT_CHERRY_PICK_HELP="\ +hint: after resolving the conflicts, mark the corrected paths +hint: with 'git add <paths>' and run 'git rebase --continue'" export GIT_CHERRY_PICK_HELP warn () { - echo "$*" >&2 + printf '%s\n' "$*" >&2 } output () { @@ -198,6 +208,7 @@ make_patch () { } die_with_patch () { + echo "$1" > "$DOTEST"/stopped-sha make_patch "$1" git rerere die "$2" @@ -222,8 +233,9 @@ do_with_author () { } pick_one () { - no_ff= - case "$1" in -n) sha1=$2; no_ff=t ;; *) sha1=$1 ;; esac + ff=--ff + case "$1" in -n) sha1=$2; ff= ;; *) sha1=$1 ;; esac + case "$NEVER_FF" in '') ;; ?*) ff= ;; esac output git rev-parse --verify $sha1 || die "Invalid commit name: $sha1" test -d "$REWRITTEN" && pick_one_preserving_merges "$@" && return @@ -232,16 +244,7 @@ pick_one () { output git cherry-pick "$@" return fi - parent_sha1=$(git rev-parse --verify $sha1^) || - die "Could not get the parent of $sha1" - current_sha1=$(git rev-parse --verify HEAD) - if test -z "$no_ff" && test "$current_sha1" = "$parent_sha1" - then - output git reset --hard $sha1 - output warn Fast-forward to $(git rev-parse --short $sha1) - else - output git cherry-pick "$@" - fi + output git cherry-pick $ff "$@" } pick_one_preserving_merges () { @@ -261,10 +264,10 @@ pick_one_preserving_merges () { then if test "$fast_forward" = t then - cat "$DOTEST"/current-commit | while read current_commit + while read current_commit do git rev-parse HEAD > "$REWRITTEN"/$current_commit - done + done <"$DOTEST"/current-commit rm "$DOTEST"/current-commit || die "Cannot write current commit's replacement sha1" fi @@ -348,6 +351,7 @@ pick_one_preserving_merges () { printf "%s\n" "$msg" > "$GIT_DIR"/MERGE_MSG die_with_patch $sha1 "Error redoing merge $sha1" fi + echo "$sha1 $(git rev-parse HEAD^0)" >> "$REWRITTEN_LIST" ;; *) output git cherry-pick "$@" || @@ -425,9 +429,29 @@ die_failed_squash() { die_with_patch $1 "" } +flush_rewritten_pending() { + test -s "$REWRITTEN_PENDING" || return + newsha1="$(git rev-parse HEAD^0)" + sed "s/$/ $newsha1/" < "$REWRITTEN_PENDING" >> "$REWRITTEN_LIST" + rm -f "$REWRITTEN_PENDING" +} + +record_in_rewritten() { + oldsha1="$(git rev-parse $1)" + echo "$oldsha1" >> "$REWRITTEN_PENDING" + + case "$(peek_next_command)" in + squash|s|fixup|f) + ;; + *) + flush_rewritten_pending + ;; + esac +} + do_next () { rm -f "$MSG" "$AUTHOR_SCRIPT" "$AMEND" || exit - read command sha1 rest < "$TODO" + read -r command sha1 rest < "$TODO" case "$command" in '#'*|''|noop) mark_action_done @@ -438,6 +462,7 @@ do_next () { mark_action_done pick_one $sha1 || die_with_patch $sha1 "Could not apply $sha1... $rest" + record_in_rewritten $sha1 ;; reword|r) comment_for_reflog reword @@ -445,7 +470,8 @@ do_next () { mark_action_done pick_one $sha1 || die_with_patch $sha1 "Could not apply $sha1... $rest" - git commit --amend + git commit --amend --no-post-rewrite + record_in_rewritten $sha1 ;; edit|e) comment_for_reflog edit @@ -453,6 +479,7 @@ do_next () { mark_action_done pick_one $sha1 || die_with_patch $sha1 "Could not apply $sha1... $rest" + echo "$sha1" > "$DOTEST"/stopped-sha make_patch $sha1 git rev-parse --verify HEAD > "$AMEND" warn "Stopped at $sha1... $rest" @@ -509,6 +536,35 @@ do_next () { rm -f "$SQUASH_MSG" "$FIXUP_MSG" ;; esac + record_in_rewritten $sha1 + ;; + x|"exec") + read -r command rest < "$TODO" + mark_action_done + printf 'Executing: %s\n' "$rest" + # "exec" command doesn't take a sha1 in the todo-list. + # => can't just use $sha1 here. + git rev-parse --verify HEAD > "$DOTEST"/stopped-sha + ${SHELL:-@SHELL_PATH@} -c "$rest" # Actual execution + status=$? + if test "$status" -ne 0 + then + warn "Execution failed: $rest" + warn "You can fix the problem, and then run" + warn + warn " git rebase --continue" + warn + exit "$status" + fi + # Run in subshell because require_clean_work_tree can die. + if ! (require_clean_work_tree) + then + warn "Commit or stash your changes, and then run" + warn + warn " git rebase --continue" + warn + exit 1 + fi ;; *) warn "Unknown command: $command $sha1 $rest" @@ -537,6 +593,16 @@ do_next () { test ! -f "$DOTEST"/verbose || git diff-tree --stat $(cat "$DOTEST"/head)..HEAD } && + { + test -s "$REWRITTEN_LIST" && + git notes copy --for-rewrite=rebase < "$REWRITTEN_LIST" || + true # we don't care if this copying failed + } && + if test -x "$GIT_DIR"/hooks/post-rewrite && + test -s "$REWRITTEN_LIST"; then + "$GIT_DIR"/hooks/post-rewrite rebase < "$REWRITTEN_LIST" + true # we don't care if this hook failed + fi && rm -rf "$DOTEST" && git gc --auto && warn "Successfully rebased and updated $HEADNAME." @@ -554,24 +620,37 @@ do_rest () { # skip picking commits whose parents are unchanged skip_unnecessary_picks () { fd=3 - while read command sha1 rest + while read -r command rest do # fd=3 means we skip the command - case "$fd,$command,$(git rev-parse --verify --quiet $sha1^)" in - 3,pick,"$ONTO"*|3,p,"$ONTO"*) + case "$fd,$command" in + 3,pick|3,p) # pick a commit whose parent is current $ONTO -> skip - ONTO=$sha1 + sha1=${rest%% *} + case "$(git rev-parse --verify --quiet "$sha1"^)" in + "$ONTO"*) + ONTO=$sha1 + ;; + *) + fd=1 + ;; + esac ;; - 3,#*|3,,*) + 3,#*|3,) # copy comments ;; *) fd=1 ;; esac - echo "$command${sha1:+ }$sha1${rest:+ }$rest" >&$fd + printf '%s\n' "$command${rest:+ }$rest" >&$fd done <"$TODO" >"$TODO.new" 3>>"$DONE" && - mv -f "$TODO".new "$TODO" || + mv -f "$TODO".new "$TODO" && + case "$(peek_next_command)" in + squash|s|fixup|f) + record_in_rewritten "$ONTO" + ;; + esac || die "Could not skip unnecessary pick commands" } @@ -602,17 +681,17 @@ rearrange_squash () { test -s "$1.sq" || return used= - while read pick sha1 message + while read -r pick sha1 message do case " $used" in *" $sha1 "*) continue ;; esac - echo "$pick $sha1 $message" - while read squash action msg + printf '%s\n' "$pick $sha1 $message" + while read -r squash action msg do case "$message" in "$msg"*) - echo "$action $squash $action! $msg" + printf '%s\n' "$action $squash $action! $msg" used="$used$squash " ;; esac @@ -687,6 +766,8 @@ first and then run 'git rebase --continue' again." } fi + record_in_rewritten "$(cat "$DOTEST"/stopped-sha)" + require_clean_work_tree do_rest ;; @@ -742,12 +823,18 @@ first and then run 'git rebase --continue' again." -i) # yeah, we know ;; + --no-ff) + NEVER_FF=t + ;; --root) REBASE_ROOT=t ;; --autosquash) AUTOSQUASH=t ;; + --no-autosquash) + AUTOSQUASH= + ;; --onto) shift ONTO=$(parse_onto "$1") || @@ -783,8 +870,6 @@ first and then run 'git rebase --continue' again." if test ! -z "$1" then - output git show-ref --verify --quiet "refs/heads/$1" || - die "Invalid branchname: $1" output git checkout "$1" || die "Could not checkout $1" fi @@ -845,11 +930,12 @@ first and then run 'git rebase --continue' again." git rev-list $MERGES_OPTION --pretty=oneline --abbrev-commit \ --abbrev=7 --reverse --left-right --topo-order \ $REVISIONS | \ - sed -n "s/^>//p" | while read shortsha1 rest + sed -n "s/^>//p" | + while read -r shortsha1 rest do if test t != "$PRESERVE_MERGES" then - echo "pick $shortsha1 $rest" >> "$TODO" + printf '%s\n' "pick $shortsha1 $rest" >> "$TODO" else sha1=$(git rev-parse $shortsha1) if test -z "$REBASE_ROOT" @@ -868,7 +954,7 @@ first and then run 'git rebase --continue' again." if test f = "$preserve" then touch "$REWRITTEN"/$sha1 - echo "pick $shortsha1 $rest" >> "$TODO" + printf '%s\n' "pick $shortsha1 $rest" >> "$TODO" fi fi done @@ -911,6 +997,7 @@ first and then run 'git rebase --continue' again." # e, edit = use commit, but stop for amending # s, squash = use commit, but meld into previous commit # f, fixup = like "squash", but discard this commit's log message +# x <cmd>, exec <cmd> = Run a shell command <cmd>, and stop if it fails # # If you remove a line here THAT COMMIT WILL BE LOST. # However, if you remove everything, the rebase will be aborted. @@ -927,10 +1014,11 @@ EOF has_action "$TODO" || die_abort "Nothing to do" - test -d "$REWRITTEN" || skip_unnecessary_picks + test -d "$REWRITTEN" || test -n "$NEVER_FF" || skip_unnecessary_picks + output git checkout $ONTO || die_abort "could not detach HEAD" git update-ref ORIG_HEAD $HEAD - output git checkout $ONTO && do_rest + do_rest ;; esac shift |